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| ph Value of Fruit juice |
To determine the pH value of solution and fruit juices
with the use of pH-paper approximately.
AIM : To determine
the pH value of solution and fruit juices with the use of pH-paper
approximately
APPARATUS : Seven
glass test tubes, one dropper, Test tube
stand, and glass rod. Dilute hydrochloric acid solution,Lemon juice, Tomato
juice, Distilled water, Sodium chloride solution, Sodium hydroxide solution,
Sodium carbonate solution,
THEORY : [ The pH scale runs from 0 to 14 ]
If the pH of a solution is 7 it is a neutral solution. pH
of acid is less then seven and that of base is more than seven.
Thus the nature of solution whether neutral, acidic or
basic can be known by knowing by pH value of
solution. In the school laboratory pH value is determined by using pH
papers. The basic principle of the pH paper is that it undergoes a suitable
change in colour which is characteristic of the pH of the test sample of the
solution. In this way pH paper is an indicator in different media of solutions
giving different colour.
In the laboratory red and blue litmus papers are also
used to find pH value less than 7 pH, more than7pH and 7pH.
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| pH value of solution and fruit juices |
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| ph value of Dilute hydrochloric acid |
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| pH value of solution and fruit juices |
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| ph vales of Sodium chloride solution |
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| ph vales of different Fruit juice |
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| ph values table |
CONCLUSION
PRACTICAL USES : From pH value the property of substance
or solution whether acidic, neutral or basic can be determined.
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